1131102211121 has 4 divisors (see below), whose sum is σ = 1140008527872. Its totient is φ = 1122195894372.

The previous prime is 1131102211079. The next prime is 1131102211123. The reversal of 1131102211121 is 1211122011311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1131102211121 - 2¹⁰ = 1131102210097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1131102211121.

It is not an unprimeable number, because it can be changed into a prime (1131102211123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4453158185 + ... + 4453158438.

It is an arithmetic number, because the mean of its divisors is an integer number (285002131968).

Almost surely, 2^{1131102211121} is an apocalyptic number.

It is an amenable number.

1131102211121 is a deficient number, since it is larger than the sum of its proper divisors (8906316751).

1131102211121 is an equidigital number, since it uses as much as digits as its factorization.

1131102211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8906316750.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 1131102211121 its reverse (1211122011311), we get a palindrome (2342224222432).

The spelling of 1131102211121 in words is "one trillion, one hundred thirty-one billion, one hundred two million, two hundred eleven thousand, one hundred twenty-one".